@bastian97 @Erick @Avenger1324 currently no act 4 but he confirmed that eventually they will have an act 4. There will be a major boss + new areas to explore though after what you've seen in Act 3 beta.
@Avenger1324 you gain i think refund points from some quests, and there is also a currency in the game called a "regret orb" which allows you to unskill one point from skill tree but it cant just be anywhere. Has to be at the end of a "line" of skills then you go back so to speak. If that makes sense
@dkeppens once loot 2.0 comes out you'll see more interesting loot. Not sure if you've seen some of it yet, but theres items that will be build changers and items that will proc cool stuff like summon stuff to fight for you, or a goblin to pick stuff up, etc etc. Looks promising
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